9949989744 has 30 divisors (see below), whose sum is σ = 27846152256. Its totient is φ = 3316663200.

The previous prime is 9949989737. The next prime is 9949989781. The reversal of 9949989744 is 4479899499.

It is a happy number.

9949989744 is a `hidden beast` number, since 9 + 9 + 499 + 8 + 97 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34548432 + ... + 34548719.

Almost surely, 2^9949989744 is an apocalyptic number.

It is an amenable number.

9949989744 is an abundant number, since it is smaller than the sum of its proper divisors (17896162512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9949989744 is a wasteful number, since it uses less digits than its factorization.

9949989744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69097165 (or 69097156 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 72.

The square root of 9949989744 is about 99749.6353076040. The cubic root of 9949989744 is about 2150.8372253333.

The spelling of 9949989744 in words is "nine billion, nine hundred forty-nine million, nine hundred eighty-nine thousand, seven hundred forty-four".